The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 01, 2020
Filed:
Jun. 06, 2017
Linde Zhang, Shenzhen, CN;
Jin Yan, Shenzhen, CN;
Other;
Abstract
The present invention relates to a preparation method of fluorinated graphene. The method for preparing fluorinated graphene, including the following steps: S1), under the protection of inert gas, the graphene undergoes a fluorination reaction with a first fluorinating agent, the reaction temperature is 150-550° C., the reaction time is 2-20 h, and a fluorinated graphene crude product is obtained. The graphene is graphene powder, or a graphene film; the first fluorinating agent includes fluorine gas; S2), under the protection of inert gas, the fluorinated graphene crude product undergoes a fluorination reaction with a second fluorinating agent, the reaction temperature is 150-400° C., the reaction time is 2-10 h, and a fluorinated graphene is obtained. The second fluorinating agent is gas-phase fluoride. By using the method, fluorinated graphene having a high fluorine content can be prepared, the fluorine content is close to the theoretical level, and the defect density is low.